A failure to achieve a specified goal may be experienced as stress due to Coping Frustration Change Pressure

The correct answer to the question is Frustration.

Explanation:

1. Coping: This term refers to the strategies or methods individuals use to manage stress and deal with challenges. While coping can mitigate feelings of stress, it does not describe the feeling itself when a goal isn't achieved.

2. Frustration: This is a common emotional response experienced when one's efforts to achieve a goal are blocked or unmet. It encapsulates the feeling of disappointment and stress that arises in such situations.

3. Change: This represents a shift in circumstances or routines, which can indeed be a source of stress. However, change itself does not specifically tie to the failure of achieving a goal.

4. Pressure: This often refers to external demands that may lead to stress, but again, it doesn't directly capture the emotional response associated with not meeting goals.

In summary, frustration is specifically linked to the stress experienced when one fails to achieve a goal, making it the most fitting answer among the options provided.